\documentclass[tikz]{standalone}
%\usepackage{tikz}
\begin{document}
\begin{tikzpicture}[circuit ee IEC, set resistor graphic=var resistor IEC graphic] 
  \pgfmathsetmacro{\shift}{4}

\node [contact] (ground contact) at (0.5*\shift+1,\shift) {};
\node [contact] (down contact 1) at (\shift,0) {};
\node [contact] (down contact 2) at (2*\shift,0) {};
\node [contact] (down contact 3) at (-\shift,0) {};

\node [contact] (e contact) at (0.5*\shift,\shift) {};
\node [contact] (i contact) at (0.5*\shift,0) {};

\node (e_text) at (0.5*\shift,\shift+1.5){Extracellular};
\node (i_text) at (0.5*\shift,-1.5){Intracellular};

\node (e)[circle, draw, fill=white, inner sep=2pt] at (0.5*\shift,\shift+1) {};
\draw {(e contact) -- (e)};

\node (i)[circle, draw, fill=white, inner sep=2pt] at (0.5*\shift,-1) {};
\draw {(i contact) -- (i)};

%circuit
  %clockwise Em 
 \draw  (0,0) to [capacitor={info={$C_{m_{2_i}}$}}] ++(up:\shift)
               -- ++(right:\shift)
               to [ resistor = {info' = {$R_{m_{2_i}}$}, near start},
               battery={info'={$E_{m_{2_i}}$}, near end}] ++(down:\shift) 
               -- (0,0);



%Ra
\draw (down contact 1) to [resistor={info={$Ra_2/2$}}](down contact 2);
\draw (down contact 1) to [resistor={info'={$Ra_2/2$}, near end}](down contact 3);

%V
\node (v) at (-1.5*\shift, 0.5*\shift) {$V_{2_i}$};
\draw [triangle 45-]{(-1.5*\shift,-1) -- ++(up:0.5+0.5*\shift)};
\draw [triangle 45-]{(-1.5*\shift,\shift+1) -- ++(down:0.5+0.5*\shift)};

%ground
\draw (ground contact) -- ++(up:1) -- ++ (right:1)
to [ground={pos=1}] ++(down:0.5);


\end{tikzpicture}
\end{document}